471721162357 has 4 divisors (see below), whose sum is σ = 471751016940. Its totient is φ = 471691307776.

The previous prime is 471721162337. The next prime is 471721162477. The reversal of 471721162357 is 753261127174.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 274548752676 + 197172409681 = 523974^2 + 444041^2 .

It is a cyclic number.

It is not a de Polignac number, because 471721162357 - 2¹⁵ = 471721129589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471721162307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14903578 + ... + 14935195.

It is an arithmetic number, because the mean of its divisors is an integer number (117937754235).

Almost surely, 2^471721162357 is an apocalyptic number.

It is an amenable number.

471721162357 is a deficient number, since it is larger than the sum of its proper divisors (29854583).

471721162357 is a wasteful number, since it uses less digits than its factorization.

471721162357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29854582.

The product of its digits is 493920, while the sum is 46.

The spelling of 471721162357 in words is "four hundred seventy-one billion, seven hundred twenty-one million, one hundred sixty-two thousand, three hundred fifty-seven".